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Measurement of positive/negative active/reactive energy, demand and energy and demand under each tariff;, Measurement of four quadrant reactive energy;, Measurement of positive active/reactive max demand and negative active/reactive max demand against each time segment;, 4 tariff, 10 day time period, 5 day time table, 4 time zone and 12 public holidays can be programmable;, LCD display meter running status, setting of each kind of parameter and each kind of measuring data;, Scroll-display, the displayed parameters(not exceed 32 items) , display time and sequence can be set randomly;, Real time measurement of voltage, current, power, power factor and current frequency of each phase;, Record events of voltage loss, current loss, voltage qualified rate, power cut and on, programming, demand reset, broadcast time checking etc;, Active/reactive pulse testing output, positive/negative active/reactive SO pulse output;, 1Hz clock output;, Programming prohibition and demand restoration;, Infrared remote during power break and awakening by pressing button, infrared remote meter-reading when power break can also be realized;, One infrared communication interface and independent double RS 485 interface;, Fault alarming;